So... er, that was odd. Probe thingee jumped out of nowhere and blew up a wee bit of Earth. Half-assed Vogons? Nice SFX though.
Meanwhile, some Klingons are grumbling about the fact that Archer's still free, and send Duras after him.
On Enterprise, Archer informs the crew there's been an attack on Earth. Enterprise has been recalled. Trip's anxious to know what part of Florida got hit, cause he has a sister who lives there. Then Reed reports incoming Suliban ships, and Archer is kidnapped.
Silik takes Archer to see Future Guy, who says the probe was sent by the Xindi, who knew that humans would destroy their world in 400 years time because they were warned by people from the future. The probe was a test, and the Xindi are working on a bigger weapon. (Er, so why send a prototype when it'll warn the humans?) Archer is returned to Enterprise and the Suliban leave, having fulfilled their purpose as an expositionary device.
The death toll now stands at 7 million people. As Enterprise nears Earth, a Klingon ship attacks and demands Archer. However, at this point, three Starfleet ships turn up and dork on the Klingons, forcing them to retreat.
Archer tells Admiral Forrest he wants to take the Enterprise to find the Xindi - the coordinates he was given are inside the Delphic expanse, an extremely dangerous area of space. Forrester says they need proof - Archer provides it by demonstrating that a piece of the probe was manufactured 400 years in the future.
A Vulcan doctor checks out Archer and makes smalltalk about people from the future, then Phlox finds the Vulcan is a psychologist and he and Archer promptly throw him off the ship.
Reed and Trip check out the smoking crater where his sister's house was, while Archer and Forrester check out the under-construction NX-02. They're talking about putting military on board Enterprise. T'Pol and Phlox discuss staying on board - T'Pol's been recalled by the High Command, but Phlox gives her a talk.
Oooo, new missiles.
Archer views footage from a Vulcan ship which entered the enpanse - the crew going insane and turning on each other.
Enterprise emerges from spacedock, having been upgraded. The Klingons are waiting. Or something.
Archer and Trip have a drinkie. Jeeze, Trip has the killing rage. They're interrupted by the Klingons but a few photon torpedoes knock the Bird of Prey out of warp. The ship continues on its way to Vulcan to drop T'Pol off. She talks Archer into letting her stay, and they set a course for the Delphic Expanse.
Soem seven weeks later, they actually get there and head in to the clouds surrounding the expanse. Three Klingon ships appear to have followed them in. Hey, evasive manouvres are actually working for a change.
The Klingons give them a call, and Archer tells them "go to hell". Enterprise continues in, losing two of the BOPs. Using a cunning plan, they get behind the Klingon ship and destroy it.
Enterprise scoots on into the expanse. Teh end.